What's the difference between a cob vs ear (of corn)?

[pizza]

Is there a difference between an ear of corn and a corn cob? or they mean the same?.

[billmcd]

Is there a difference between an ear of corn and a corn cob? or they mean the same?.

Basically the same but perhaps a slight difference, depending on context, in that the cob can be referred to as the vegitation upon which the kernels of corn grow, whereas the ear of corn would include both the cob and the kernels. A corn cob pipe (for smoking tobacco) however, would not include the kernels. Again, context would dictate usage.

[SoothingDave]

The ear would also include the silk and husks that are (usually) removed before cooking.